In the villages of Afghanistan, many young men are working for the government during the week, but fighting for the Taliban at weekends.
"We don't get paid," says Gul Mohammad.
"It's voluntary - all for the sake of God. We even buy fuel for the operations ourselves. And our own ammunition and bullets."
Gul Mohammad (his name changed to protect his identity) is not what you might think of as a typical Taliban fighter.
He is educated, in his 20s, married with children and, during the week, he works in a government office.
"I'm a civil servant - that's how I support my family, with my salary and by growing wheat, here in the village.